From a2430b25c31840a6dcbf95c65415d5fee2984dbc Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <masahiroy@kernel.org>
Date: Sat, 19 Nov 2022 04:15:50 +0900
Subject: kbuild: add kbuild-file macro

While building, installing, cleaning, Kbuild visits sub-directories
and includes 'Kbuild' or 'Makefile' that exists there.

Add 'kbuild-file' macro, and reuse it from scripts/Makefie.*

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
Reviewed-by: Alexander Lobakin <alobakin@pm.me>
Tested-by: Alexander Lobakin <alobakin@pm.me>
---
 scripts/Kbuild.include | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'scripts/Kbuild.include')

diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include
index 2bc08ace38a3..cbe28744637b 100644
--- a/scripts/Kbuild.include
+++ b/scripts/Kbuild.include
@@ -40,6 +40,11 @@ escsq = $(subst $(squote),'\$(squote)',$1)
 # Quote a string to pass it to C files. foo => '"foo"'
 stringify = $(squote)$(quote)$1$(quote)$(squote)
 
+###
+# The path to Kbuild or Makefile. Kbuild has precedence over Makefile.
+kbuild-dir = $(if $(filter /%,$(src)),$(src),$(srctree)/$(src))
+kbuild-file = $(or $(wildcard $(kbuild-dir)/Kbuild),$(kbuild-dir)/Makefile)
+
 ###
 # Easy method for doing a status message
        kecho := :
-- 
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